Title:
FEED CIRCUIT FOR ANTENNA OF ANGLE OF ARRIVAL MEASUREMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/241391
Kind Code:
A1
Abstract:
A feed circuit (18) for feeding an antenna (19, 43, 60) includes: a first coupler (C1) including conductive elements (2610, 2620); a second coupler (C2) including conductive elements (2612, 2622); a third coupler (C3) including conductive elements (2614, 2624); a delay line (D1); first terminals (2634, 2638, 2648, 2642) connected to the antenna (19, 43, 60); second terminals (2630, 2640, 2642, 2644) connected to a ground reference (2650); and a feed terminal (2632) connected to the first coupler (C1) and receive at least one of a transmit signal or a combined received signal from the antenna (19, 43, 60). The first terminals (2634, 2638, 2648, 2642) are connected to the second coupler (C2) and the third coupler (C3) and output a signal at different phases to conductive elements of the antenna (19, 43, 60). The second terminals (2630, 2640, 2642, 2644) are connected to the first coupler (C1), the second coupler (C2) and the third coupler (C3).
Inventors:
AHMED OSMAN (US)
GUTHRIE WARREN (US)
STITT RAYMOND (US)
GUTHRIE WARREN (US)
STITT RAYMOND (US)
Application Number:
PCT/JP2020/019849
Publication Date:
December 03, 2020
Filing Date:
May 20, 2020
Export Citation:
Assignee:
DENSO INT AMERICA INC (US)
International Classes:
H01P5/16; H01Q3/26; H01Q11/08
Foreign References:
| US20040017328A1 | 2004-01-29 | |||
| JP2002043813A | 2002-02-08 | |||
| US20180115062A1 | 2018-04-26 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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